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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 113 (1980), S. 274-277 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Cumulated Ylides, VI. A New Synthesis of (Triphenylphosphoranylidene)ketene, its Thio Analogue, and Stable PropadienylidenetriphenylphosphoranesReaction of sodium bis(trimethylsilyl)amide (2) with (methoxycarbonylmethylene)triphenyl-phosphorane (1a) or its dithio analogue 1b leads to β-elimination and formation of (triphenyl-phosphoranylidene)ketene (3a) and -thioketene (3b), respectively. The analogous reaction of 2 with the (α-ethoxyallylidene)triphenylphosphoranes 8 gives rise to the formation of the stable propadienylidenetriphenylphosphoranes 9.
    Notes: Die Einwirkung von Natrium-bis(trimethylsilyl)amid (2) auf (Methoxycarbonylmethylen)triphenylphosphoran (1a) bzw. sein Dithioanaloges 1b führt unter β-Eliminierung zu (Triphenylphosphoranyliden)keten (3a) bzw. -thioketen (3b). Die analoge Reaktion von 2 mit den (α-Ethoxyallyliden)-triphenylphosphoranen 8 liefert die stabilen Propadienylidentriphenylphosphorane 9.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
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